http://cdn.obr.uk/FSR-July-2018-1.pdf
https://www.ft.com/content/36ae6198-9ee1-4144-96c1-039bd7e32893
https://es.insightcrime.org/investigaciones/carcel-honduras-llamada-barrio-18/
https://www.frc.org.uk/news/july-2020/frc-principles-for-operational-separation-of-a-(1)